:root {
  --background-color: #351c75;
  --headins-color: #da227d;
}

* { box-sizing: border-box; }

/* Sticky footer layout */
html, body { height: 100%; }

body {
  min-height: 100vh;
  display: flex;
  flex-direction: column;
  font-family: Arial, sans-serif;
  margin: 0;
}

#header-pic {
  background-color: var(--background-color);
  color: #fff;
  width: 100vw;
  margin-left: calc(50% - 50vw);
  margin-right: calc(50% - 50vw);
  display: grid;
  gap: 16px;
  justify-items: center;
}

#header-pic h1 {
  text-align: center;
  font-size: 32px;
  margin: 0;
  padding: 0 12px;
}

/* Banner image */
#header-pic img {
  width: 200px;  
  height: auto;
  max-height: 160px;
  display: block;
}

/* Main content wrapper */
.page {
  flex: 1;               /* pushes footer down when content is short */
  width: 100%;
  max-width: 720px;
  margin: 0 auto;
  padding: 70px 20px 8px;
}

/* Logo: mobile-first (in flow, centered) */
.logo {
  position: fixed;
  top: 20px;
  left: 20px;
  width: 140px;
  height: auto;
  margin: 0;
  z-index: 1000;
}

/* Title */
h1 {
  text-align: center;
  font-size: 32px;
  margin: 0 0 16px;
  padding: 0 12px;
}

/* Registration */
#registration {
  font-size: 20px;
  text-align: center;
  margin-top: 12px;
}

#registration label {
  display: block;
  margin-bottom: 8px;
}

#registration .controls {
  display: flex;
  gap: 12px;
  justify-content: center;
  flex-wrap: wrap;        /* button can wrap under input on small screens */
  margin-top: 8px;
}

#email-input {
  width: min(420px, 100%);
  min-width: 0;
  padding: 12px;
  font-size: 16px;        /* avoids iOS zoom */
  /* border: none; */
  border-radius: 6px;
}

#enter-email-btn {
  padding: 12px 18px;
  font-size: 16px;
  background-color: var(--background-color);
  color: white;
  border: none;
  border-radius: 6px;
  cursor: pointer;
}

/* Warning message */
#warning {
  color: var(--headins-color);
  font-size: 16px;
  text-align: center;
  margin: 20px 0;
}

#url-list {
  margin-top: 24px;
  min-height: 120px;
}

#ul-list {
  padding-left: 20px;
  margin: 16px auto;
  max-width: 720px;
}

#ul-list li {
  margin: 10px 0;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 8px;
}

#ul-list a {
  color: black;
}

#ul-list a:hover {
  color: var(--headins-color);
}
/* div with the check mark */
/* #ul-list li > div {
  min-width: 24px;
  text-align: right;
  font-size: 20px;
  color: green;
} */

/* Loading spinner next to warning */
#warning.loading::after {
  content: '';
  display: inline-block;
  width: 12px;
  height: 12px;
  margin-left: 6px;
  border: 2px solid #ccc;
  border-top-color: #000;
  border-radius: 50%;
  animation: spin 0.8s linear infinite;
}

@keyframes spin {
  to { transform: rotate(360deg); }
}

/* Footer (sticky via flex layout, not fixed) */
footer {
  text-align: center;
  font-size: 14px;
  padding: 8px 0 0;         
  margin-top: 16px;  
}

/* Tablet: 768–1023px */
@media (min-width: 768px) and (max-width: 1023px) {
  .page {
    max-width: 900px;
    padding: 70px 20px 8px;
  }

  #header-pic h1 {
    font-size: 40px;
  }

  #registration {
    font-size: 22px;
  }

  #registration .controls {
    flex-wrap: nowrap;
  }

  #email-input {
    width: 520px;
  }

 #ul-list li {
  margin: 10px 0;
  display: grid;
  grid-template-columns: 32px 1fr;
  gap: 8px;
}
}

/* Desktop: 1024px+ */
@media (min-width: 1024px) {
  .page {
    max-width: 1100px;
    padding: 70px 20px 8px;
  }

  #header-pic {
    grid-template-columns: 2fr 1fr; /* title + image side by side */
    align-items: center;
    justify-items: center;
    gap: 28px;
  }

  #header-pic h1 {
    font-size: 48px;
    text-align: left;
    padding: 0;
    max-width: 520px;
  }

  #header-pic img {
  width: 280px;       /* bigger on desktop */
  max-height: 220px;
}

  #registration {
    font-size: 22px;
  }

 #ul-list li {
  margin: 10px 0;
  grid-template-columns: 32px 1fr;
  gap: 8px;
}
}